Processing Unit Cylinder Gap Adjustment via Elastic Solid Joints
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Solution Overview
Problem
Existing processing units for rotational processing of substrates, such as label printing machines, face complex and imprecise adjustment mechanisms, leading to poor repeatability and precision in setting gap dimensions between processing cylinders.
Innovation Solution
A processing unit with a movable first cylinder and a stationary second cylinder, utilizing solid joints with annular segments and manipulators for precise linear adjustment, where the solid joints can deform elastically and are supported by leaf springs, allowing for exact gap control between cylinders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If complicated adjustment installations (raceways, annular supports, bearer rings) are used to adjust the gap between cylinders, then the gap can be adjusted, but the construction becomes complex and the adjustment precision is poor
Solution Approach 1:
The adjustment installation is segmented into distinct functional components: a manipulator for actuation, a solid joint for movement control, and an annular segment for contact. This segmentation allows each component to be optimized independently, simplifying the overall construction while improving adjustment precision through specialized design of each segment.
Solution Approach 2:
The patent replaces complex mechanical adjustment installations (raceways, annular supports, bearer rings) with a simplified mechanism consisting of a manipulator, solid joint, and annular segment. This substitution eliminates the need for complicated mechanical structures while achieving superior adjustment precision and repeatability.
2Adaptability or versatility
If adjustable support members are used to adapt the gap to different substrates, then adaptability is improved, but the adjustment precision and repeatability deteriorate
Solution Approach 1:
The support members are designed to be dynamically adjustable through the manipulator-s Solid joint-annular segment mechanism. The solid joint can be displaced linearly by the manipulator, allowing the gap to be adapted to different substrate requirements. The dynamic nature of this mechanism ensures both adaptability and precise repeatability, as the same gap dimension can be exactly reproduced for repeat orders.
Solution Approach 2:
The gap dimension parameter can be changed by displacing the solid joint linearly using the manipulator. This parameter change mechanism allows adaptation to different substrate requirements while maintaining precise repeatability, as the linear displacement can be controlled and reproduced accurately.
3Ease of manufacture
If solid joints with leaf springs are used for elastic deformation, then the adjustment mechanism becomes simpler and more cost-effective, but the precision might be compromised
Solution Approach 1:
The solid joint incorporates leaf springs that enable elastic deformation, allowing the joint to change its physical state (flexibility) while maintaining structural integrity. This parameter change (from rigid to elastically flexible) simplifies manufacturing and reduces cost while the controlled elastic deformation actually improves precision by allowing smooth, continuous adjustment without dead zones or play.
Solution Approach 2:
The solid joint combines rigid structural elements with elastic leaf spring elements, creating a composite structure that exhibits both strength and flexibility. This composite design simplifies manufacturing compared to purely rigid mechanisms while maintaining high adjustment precision through the controlled elastic behavior of the leaf springs.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables simple, precise, and repeatable adjustment of the gap dimension between processing cylinders, improving the accuracy and reliability of the processing unit's operations.
Implementation Method 1
the solid joint has elements and/or tapers in the material which enable an elastic deformation of the solid joint and thus a movement in the direction of the linear axis
Implementation Method 2
a respective solid joint has at least one leaf spring as such an element, wherein the at least one leaf spring connects the body of the solid joint to the machine frame
Data Source
AI summary
A processing unit for rotational processing includes at least two processing cylinders and a machine frame. A first processing cylinder is movably mounted in the machine frame, a second processing cylinder is stationarily mounted in the machine frame and a pair of support members is provided for each respective processing cylinder. A respective support member of the second processing cylinder has a solid joint, a manipulator and an annular segment attached to the solid joint and contacting one support member of the first processing cylinder. A solid joint is linearly displaceable by the manipulator and an annular segment is linearly displaceable therewith. A gap dimension between the processing cylinders can therefore be adjusted in a simple, accurate manner with precise repeatability. A label printing machine having the processing unit is also provided.